Roll-winding mechanism



Sept. 5, 1939. A O MICKELSON AL 2,171,667

ROLL-WINDING MECHANISM Filed Oct. 16, 1937 4 Sheets-Sheet l Sept. 5,1939. A. o. MICKELSON ET AL ROLL-WINDING MECHANISM Filed Oct. 16, 1937 4Sheets-Sheet 2 Sept- 5, 1939- A. o. MICKELSON Er AL 2,171,667

ROLLWINDING MECHANISM Filed Oct. 16, 1937 4 Sheets-Sheet 3 I l l l Sept.5, 1939. Q MICKELSON ET AL 2,171,667

ROLL-WINDING MECHANISM 4 Sheets-Sheet 4 In In Filed Oct. 16, 1937 220MAC-LINE ham.-

Patented Sept. 5, 1939 UNITED STATES PATENT OFFICE 111., assignors toRoofing Machinery Mg. 00.,

Inc., Chicago, 11]., a corporation of Illinois Application October 16,1937, Serial No. 169,370

5 Claims.

The present improvements are directed to a machine through which a webof sheet material such, for example, as roofing paper, drawn from asupply roll, may be advanced a. predetermined distance concurrently witha winding of its leading end into a smaller roll, movement of the webbeing halted automatically when a measured length thereof has advancedto permit of severing of the web and removal of the roll containing adesired length of the material. A mechanism for this purpose can be usedto advantage in preparing for the market serviceable rolls of roof ingpaper or other material the lengths of which may vary considerably.

The features of improvement with which the present invention isconcerned relate to an electrical mechanism in which is comprised aplurality of circuits each with a controlling. switch, the closing of aselected switch operating to advance the web through a predetermineddistance while the leadingend thereof is being wound into a roll upon amandrel. When the web travel is halted the wound portion thereof may besevered with the aid of electrical mechanism. The starting and stoppingof the several feeding mechanisms is under the control of electricalinstrumentalities as well. These several operating units areinterconnected electrically in a novel manner, all as will be fullyexplained erein after.

Various objects and advantages, as will appear in the succeedingspecification and claims, are attained by th suggestive embodiment ofour vention which. is illustrated in the accompanying drawings in themanner following:

Figure It is a plan View of the machine its en a side elevation thereof;a side elevation, partly broken away. ontaining the switch mechanism;

3 is '30:: Fig. 4 i a 4-4 of Fig. 3;

Figs. 5 and 6 are details in section taken, respectively, on lines 55and 6 6 of Fig. i;

Fig. 7 is a wiring diagram of electrical interconnections between theseveral operating mechanisms comprised in the machine;

8 is a fragmentary sectional View taken on line 8--t of Fig. l; and

Fig. 9 is a fragmentary View in elevation taken as indicated by the lineQ-9 of Fig. l.

The present roll winder may be applied to a machine having a bedcomprising spaced horizontal I-beams III, II and I2, which are carriedupon supporting legs 13. A web W, which enters from transverse sectiontaken on line a roofing machine or is unwound from a reel (not shown) isadapted for travel through the machine to be acted upon by variousagencies which are mounted upon the bed between the beams l0 and H. Toone side, above and below the beams l l and I2, we have located some ofthe transmission, controls, etc., all as will now be explained.

Proceeding from right to left (as viewed in Figs. 1 and 2) the webadvances successively under and over idler rolls I 5 and I6; thencebetween opposed pairs of measuring Wheels I! and i8, one above theother, and mounted respectively upon shafts l9 and 20; thence between aplurality of opposed pairs of pressure wheels 2i and 22 of which theformer (the upper) are mounted each upon a weighted arm 23 pivoted as at24; thence between a pair of shafts 25, 26 on which are mounted an anvilroll and a special diamond point head with slitters, respectively, thehead containing any shape of knives desired to longitudinally slit theweb; thence between a pair of spaced feed rolls 21, 28 for pulling theweb through the machine; thence over a table 30 (Fig. 6) with which isoperatively associated a guillotine knife 3| under the separate controlof the operator; thence in measured lengths over a platform 32 which ismounted to swing upon a shaft 33 in response to an upward force appliedto a handle 55-, thence on to a gripping man drel we) it is gripped andwound into a roll. These several are interconnected to operate in timedrelation.

From a motor power is transmitted through belts to a pulley 3? on ameinshaft so equipped clutch t wi h connection with a second t5 transmitspower to a compensating clutch in connection with the mandrel the geardrives a meshmg gear it upon the shaft for one of the iower: feedingrolls; and from a sprocket wheel ll mounted on the same feeding rollshaft 9. chain it runs over a sprocket $9 on the adjacent feeding rollshaft whereby both pairs of feeding rolls are operated in unison. Thetwo idler rolls l5 and it past which the sheet travels may be shiftedendwise in unison when interconnected by a chain-sprocket assembly litas shown in Fig. 1. Also the shaft 5| which mounts the lower set ofpressure wheels 22 may be equipped with a sprocket wheel 52 adapted tobe driven from the sprocket 4i hen a chain drive connection (not shown)is established therebetween, in which event the chain 48 is not used.

The shafts for the upper feeding rol1s 25 and 21 are mounted in bearingblocks 55 which are 5 vertically slidable in supporting guides 50. Withthe aid of screw and/or tension mechanism each pair of feeding rollsmaybe maintained under pressure, in accordance with common practice. Inlike manner, the upper measuring wheel shaft 14 I9 is adjustable towardand from its lower companion shaft 20. through the several drivingconnections heretofore described, the web W is'drawn through the machineby frictional engagement therewith of 5 the feeding rolls, and in soproceeding the web imparts to the measuring wheels a rotary motion whichcontinues through a peripheral distance that is determined by advance ofthe web. Advantage is taken of this fact to measure selected 2% lengthsof the traveling web which is concurrently rewound upon the mandrel, andto oper- =ate.the guillotine knife to sever the measured length of theweb which is temporarily halted for this purpose. For accomplishingthese ends we 5 use certain mechanism which is electrically controlled,a.ll as will now be explained.

Upon the measuringwheel shaft I9 is mounted a gear 59 in disconnectabledriving relation with a collar 30 that ismounted fast on this same 30-shaft; in mesh with this gear is another gear BI with an associated worm02 adapted to drive a worm wheel 63 on a toothed shaft I54 which extendslongitudinally through a control box 65 containing a multiple switchmechanism. The 35- switch box, as shown (see Figs. 3 and 4), iscylindrical with heads 66 at its opposite ends interconnected by tierods 61. In spaced relation transversely within the box are a pluralityof fixed plates 68, each mounting (1) a stud 69 upon which is rotatablysupported a pinion 10 in mesh with the toothed shaft 64, and (2) amicro-switch III, such as shown in Patent 1,960,020 from which extends aretractible actuating finger 12, whose exposed end lies in the path of apin 13 which 45 is carried on the pinion near its periphery. As

suitable conductors, an electrical connection is extended from eachmicro-switch to a single-pole double-throw toggle switch I4 whoseoperating lever 15 is disposed exteriorly of the box con- 59) vem'entfor manipulation. The several pinions are shown as increasingprogressively in size according to their positions lengthwise of thebox, the associated micro-switch finger in each instance being mountedat such an elevation that 55 its actuating finger is disposed aboutradially of the pinion, so that as the pin 13 passes the finger thelatter is depressed to effect a closing and immediate reopening of theswitch.

The clutch and brake mechanism in the cross 59 shaft are interconnectedas best shown in Fig. 5.

For operating the movable clutch element connection is made therewith bythe weight end of a bell crank lever 16 mounted fast on a rock shaft117, a link connection 10 extending from the power end 19 of the leverto a. toggle or other device 80 at the ends of the band formingpart ofthe brake mechanism. A connection 8| extends from the power end of thelever to the core of a solenoid A which may conveniently be mounted in aframe 7 depending from the machine bed. According to the mechanisms justdescribed, the solenoid, when actuated, will release the clutchconcurrently with application of the brake so as to halt quickly alloperation of (1) the feeding rolls, and (2) the 75 winding mandrel.

In response to power applied Referring now to Fig. 6, the guillotineknife 3| is carried upon an angle bar 85 which is supported at spacedpoints at the upper ends of a pair of guide rods 86 each having anadjustable collarnut 81 against which an upward pressure is ex- 5 ertedby a compression spring 88 which bears against the machine frame. Thelower end of each rod is fitted with a yoke 89 which is pivotecllyjoined to a lever 90 (of the second class) having for its fulcrum apivoted connection 9| with a fixed bracket arm 92. The power end of thelever is joined at 93 with a. link 94 adjustably connected to the coreof a solenoid B. Two such solenoids may be employed, one in connectionwith each rod, and both electrically interconnected, so that, uponoperation thereof,'the two rods are pulled down in unison to causedescent of the knife with a consequent shearing of the web.

Referring now to Fig. 'I which shows a diagram of the wiringconnections, the motor M is "connected to-a suitable power line by meansof a switch 95 and leads 96, 91. These leads go also to a magneticcontactor relay 98 and are then connected to the brake solenoid Athrough leads 99-, and a switch I00. This switch which is normally heldopen by a spring IN 'is adapted to be closed by a solenoid I02 one sideof which connects to one of the leads '90 and the other to the leadSIthrough a switch I03 which is oper- 3o ated by an arm I04 on the shaft11 (Fig.1). This switch I03 is closed during'the winding operation aswill later be described.

A lead I05 connects one of the main leads 01 with a bus bar I00 fromwhich connections are made to all of the micro-switches 1I. Eachmicro-switch is adapted to be connected to one end of a switch bar I01.A series of switches 14 (Fig. 3) which may be of the toggle type areconnected in series with each'other and joined through a lead I08 inseries with the switch I03.

Thus it will be seen that as each one 'of the switch levers 15 isthrown,- that switch will be connected to its corresponding switch barI01. With the switch I03 closed, the motor will be in operation as willbe presently explained, and as the web advances and is wound on themandrel, the toothed shaft 64 (Fig. 3) is rotated, thereby rotating allof the pinions 10. The result is that the micro-switches II will beclosed successively, and when the micro-switch corresponding to theclosed switch 14 is closed, current will fiow through the switch barI01, through the closed switch I03, and will energize the relay I02thereby closing the switch I00, thus energizing the brake solenoidA-which disengages the clutch in connection with the winding mechanism.The brake is simultaneously applied, thereby bringing the windingoperation to a halt. The micro-switch instantly opens so as to be readyfor succeeding no operations.

The next step is to sever the web by means of the knife 3I. This is doneby'energizlng the solenoids B. Referring again to Fig. 7, the solenoidsB are shown as connecting through a lead 5 I20 with the power lead 91and through a lead I09 with a switch H0 in acontactor III, the

opposite side of the switch connecting through a lead I I2 with theother main power lead 96. The switch .0 which is normally held open by aspring H3 is adapted to be closed by a solenoid 4 which connects on oneside with the lead H2 and on the other side through a lead 5 with a handswitch 6, and thence through a lead I III with the lead I20 in thecontactor II'I. The 15 Operator severs the web, after its motion hasceased, by closing the switch 6 thereby causing current to flow throughthe solenoid Ill to close the switch III), thus energizing the two sole-5 holds B.

The mandrel comprises a jaw 35" movable radially so as to grip orrelease the web. To insert the web, the law should recede, and the openspace thus afforded should align with the web,

0 as shown in Fig. 6: The mandrel carries a cam II8 (Figs. 1 and 8)having two faces either of which is adapted to be engaged by a detent H9pivotally maintained at 33 and operated by means of a link I2I from afoot lever I22 pivotally mounted at I23.

In order to reset the mandrel the operator applies pressure to the leverI22, thereby raising the detent II9 from the normal dotted line positionof Fig. 8 to the full line position therein shown. While holding thedetent in that position, the mandrel is rotated by momentarily throwingin the clutch as will presently be described, thereby bringing the cam II8 to the position indicated in Fig. 8 where the mandrel occupies therotative position shown in Fig. 6. At the same time the web advances ashort distance in response to movement of the feed rolls. To' guide theweb into the opening between the two halves of the -mandrel, theoperator may grasp the handle 34 so as to raise the table 32 to theproper height to permit the web to slide in between the two halves ofthe mandrel, as shown in Fig. 6. Movement of the web is thereuponstopped by throwing out the clutch after which the foot may be re- 5moved from the lever I22.

The movable jaw of the mandrel is opened and closed by means of a rodI24 extending axially through the mandrel shaft, as shown in Fig. l andadapted to be operated by a lever I25 which 40 is under control of theoperator. The details of this gripping mechanism form no part of thisinvention.

Manual control of the winding mechanism is efiected by the rock shaft'I'I which operates the clutch operating lever 16. This shaft has at oneend a lever I26 which connects through a link I21 with a hand startinglever I28 (see Figs. 1 and 2). It carries also the arm I04 for operatingthe switch I03, so that, when the clutch 38 is disengaged, the switchI03 is open as well. When the operator desires to start operation of themechanism, the lever I28 is moved to the right, as shown in Fig. 1,thereby throwing in the clutch 39 and at the same time closing theswitch I03. The web advances at a uniform rate and, since the rotativespeed of the mandrel on whichit is wound will depend upon the diameterof the roll which varies as the roll builds up, provision is made todrive the mandrel somewhat faster than the speed of the web at thesmallest diameter; the resulting slippage in the mandrel drive is takencare of by the compensating clutch 45 in a well known manner.

As indicated in Fig. 3, the several clutch op- (j erating switch leversI5 are made to co-operate with the pinions ID of diiferent sizes so asto provide means for stopping the winding operation when any selectedone of many lengths of the web is wound on the roll. Each switch lever70 is therefore correlated to a given length of web travel. In eachinstance the length of web so wound will correspond to one completerevolution Thus a very simple, rapid, and accurate means is provided forelectrically controlling the distance of web advance concurrently with arewind operation thereof. To determine the length of web which will beso rewound in each operation, 5 it is necessary only to pull a selectedswitch by which everything else is controlled. For example, to effect achange in each web advance will require merely that the appropriateswitch be thrown. 10

We claim:

1. In a web rewind machine, means for winding the web on a mandrel,means operable by movement of the web for measuring the length of theweb so wound, a series of switches each corre- 1g sponding to apredetermined length of web wound on the mandrel, means operable by theweb as it is wound on the mandrel for selectively energizing one of theswitches, and means operable by current flowing through the switch so uenergized for stopping the web at apoint corresponding to the setting ofsaid switch.

2. In a web rewind machine, means for winding the web on a mandrel,means operable by movement of the web for measuring the length 25 of theweb so wound, electrically operated means for stopping the web when anyone of a number of predetermined lengths has been wound on the mandrel,a series of leads, a series of manuallyoperable, pre-set switchesadapted to selectively 3 connect any one of said leads to one pole to asource of electric current, another series of electric switches adaptedto connect said leads one at a time with the other pole, the latterseries being closed successively as predetermined points 35 in thewinding of the web on the mandrel are reached, and means for stoppingthe web when current flows through a lead and its correspondingswitches.

3. In a web rewind machine, means for winding 40 the web on a mandrel,rotary means operable by movement of the web for measuring the length ofthe web so wound, electrical means for stopping the web, a plurality ofswitches operably connected to the rotary measuring means, and 45 aplurality of selective pre-set controls any one of which may be operablyconnected to a corresponding one of the switches so as to cause itsswitch to'close a circuit to stop the web when a predetermined length ofweb corresponding to its switch has been wound on the mandrel.

4. In a web rewind machine, means for winding the web on a mandrel,rotary means operable by movement of the web for measuring the length ofthe web so wound, electrical means for stopping the web, a plurality ofmicro-switches, a plurality of switch closing means each correspondingto a desired length of web and driven by a shaft operably connected tothe rotary measuring means, and a plurality of selective pre-setcontrols any one of which may be operably connected to a correspondingone of the switches so as to cause its switch to close a circuit to stopthe web when a predetermined length of web corresponding to its switchhas been wound on the mandrel.

5. In a web rewind machine, means for winding the web on a mandrel,rotary means operable by movement of the web for measuring the length ofthe web so wound, electrical means for stopping the web, a plurality ofmicro-switches, a plurality of rotary switch closing means geared to therotary measuring means each corresponding to a desired length of webwound on the mandrel and adapted to momentarily close a mi- 7 cro-switchon each revolution thereof and erably connected to one of the switchesso as to 'promptly open the same to set the apparatus to cause itsswitch-1:0 close a circuit to stop the web X start the next roll, aplurality of selective switch when a. predetermined length of web has.been closing means each corresponding to a desired wound on themandrel.

length of web and driven by a. shaft operably connected to the-rotarymeasuring means, and ALFRED O. MICKELSON. a. plurality of selectivepre-set controls each op- LOUIS C. SCHILIO.

